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南亚之门工程位于云南省昆明市,塔楼建筑高度366m,为我国目前8度地区拟建的超高建筑之一。采用巨型框架-混凝土核心筒结构体系,层23以下建筑平面呈正方形,层23以上削角,建筑平面呈逐渐缩小的八边形,并在建筑顶部形成与底部旋转45°的内接正方形平面。置于平面四角的巨柱在层23一分为二形成8根倾斜角柱,并在设备层设置环带桁架,与巨柱形成抗侧刚度较大的巨型框架,与核心筒一起承担地震作用。环带桁架与核心筒通过加强层的楼板协调变形,起到“虚拟伸臂”的作用。采用速度型粘滞阻尼器增加结构阻尼,以减小地震作用。
South Gate project in Kunming, Yunnan Province, the tower building height of 366m, 8 degrees for our region is currently one of the super-high-rise buildings. Using a mega-frame-concrete core tube architecture, the building plane below is below 23 with a square, with a bevel above floor 23, with an obtrusive octagonal building plan and an inscribed square plane rotated 45 ° from the bottom at the top of the building. The huge column placed at the four corners of the plane is divided into two layers to form eight inclined columns in the layer 23, and a belt truss is arranged on the equipment layer to form a giant frame with large lateral rigidity with the large column to bear the earthquake action together with the core barrel. Belt truss and core tube through the reinforcement floor coordination of deformation, play “virtual extension arm ” role. The use of speed viscous dampers to increase the structural damping to reduce the earthquake.